Nguyen Ngoc Dap, 77, and his wife Tran Thi Hong, 75, have been living in a 20-square-meter house as the only human residents of the mangrove forest for nearly four decades.
"38 years ago, my wife and I left the Thuan Hoa B village to live here and sent our kids to live with relatives. At that time, Ru Cha was really rich with fish and other seafood," Dap said.